My tenant does not comply with the agreed guarantee
"I own a flat in Veyrier which I have been renting since 1 July 2020. According to the lease contract, the tenant had to provide me with a three-month rent guarantee before the keys were handed over. He entered the premises on 1 July last but has still not signed the rental guarantee despite my numerous reminders. What can I do? "Laure MEYER, CGI Conseils lawyer, answers François S., Veyrier.